Internal-combustion engine.



H. c. STOLL a; GJW. GAY.

|NTERNAL COMBUSTION ENGINE.

APPLICATION FILED JAN. 33. 1916- Patented Sept. 5, 1916.

Tow 0 I! W Clay li lllhllll HENEY l3. WEQLL, 01* lll'ill ll 'll'flllllli, AND GlElllRG-E W. GAY, F ELMHUHCJI, NEW YQBK.

.l-"uEl'dAL-UUMEUSTION ENGINE.

mmmmm Application filed January 13 To all whom it may CGWLOGIWL Be it known that Wellnirnv G. Sronn and Gnome W. GAY, citizens of the United States of America, residing at lllevv York city, and. Elmhurst, Long Island, New York, respectively, have invented a new and useful Inter. ail-Combustion Engine, of Which the following is a specification.

This invention relates to the valve mechanism of engines of this character and the general objects of the invention are to improve {1nd simplify this mechanism, to reduce the number of parts, to lighten the reiprocating parts, to render the valve mech anism smooth in action and quiet in operation and to produce through these improvean engine of increased power and figs-sever eiiiciency. in the accomplishment lit these objects We ,einploy a valve sleeve in sliding engagement with the cvnder wall and controlling one port or oi ports therein end a valve sc nerit slidingly engaged in a channel in the valve sleeve and controlling the oth r port or set of ports in the cylinder According to a preferred embodiment "the valve sleeve sunrounds and oven the outside surface of the cylinder andtl' s are two valve merits, interconnected to move as a unit and slidingly engaged in oppositely disposed longitudinelly extending groove-e or channels in the valve sleeve."

Uther features of the invention and cletails oi construction will he made apperent as the specification proceeds, attention "being directed to the accompanying drawing which illustrates the invention embodied in several preferred i'orl'ns.

In this draWingr:-Figure l, is a longitudinal. sectional view taken through the cylinder of an engine embodying the invention, parts being broken away and some parts being shown in elevation. Fig. i, a transverse sectional view of the same taken substantially on the plane of the line 2--2 of Fig. 1. Fig. 3, is a detail perspective view on a reduced scale of the valve sleeve and the segmental valve illustrated in.

1 and 4-, is a. similar view of a slightly modified form wherein the position of the segmental valve is reversed with re spect to the valve sleeve.

Reterring new first to Figs 1i. and E2, 7 designates an engine cylinder in Which operates a piston 8, this piston being of any usual or preferred construction and conill specification of Letters latent.

illustrated, the segmental valve slides Patented Flept. 5i, lllll fi.

, 1916. Serial No. 71,818.

nected With the crank shaft 9 as by means of a suitable connecting rod 10. In the form. of the invention herein illustrated, the valves Work over the outside of the cylinder and the cylinder is therefore made with a smooth cylindrical outer surface as illustrated. The side Wall of the cylinder is in the illustration provided with a pair of 0ppositely disposed in-take ports 11 and with a pair of oppositely disposed exhaust ports 12, only one of these ports 12 appearing in Fig. 1, it being understood that a similar port is provided in the Wall opposite this port. The respective pairs of ports are controlled by valves in the form of a sleeve 15 and a pair of interconnected valve segments 16, the sleeve being slidingly engaged over the outer cylindrical. surface of the cylinder and the valve segments being slidingtlv engaged in oppositely disposed longitud ridlly extending channels or grooves 17 f0 in the sleeve. In the engine herein illustrated the sleeve constitutes the iii-take val es and the inter-connected valve segments consti tute the exhaust valve, the intake valve sleeve in the sleeve valve, the, grooves in whichtlze w segments slide therefore being formed on the inner Wall of said sleeve. The alve segments are suitably connected together-so as to move as a single unit, in the present instance by integral ning; portions 18 and 19 at the upper and lower ends thereof. The upper connecting ring 18 is shown reduced or out awiiy at diametrically oppos te points as indicated at 20 so as to slide Within the sleeve when assembling the valve structure. 'lhesleeve is internally reduced at its lower end as ihdicated at 21 to receive the lower connecting ring 19. The sleeve velveis prevented from interfering with the function of the other valve by providing it with openings in the channeled portions there of in line with the ports (12) in the valve d gments.

ldcitablc gearing for operating the valves is provided, said gearingilcorhprising in the illustration a pinion 25 onftli'e cvsnlr shaft ineshingfivith the gear 2 6 onvalve p1 stroke.

outstanding lugs 32 and 33 at their lower ends with which the push rods 32and respectively are connected.

In Fig. l the parts are illustrated in the position they occupy when the piston is moving upward on its compression stroke, and has completed the first half of this 12 in the cylinder wall and the intake valve is aproaching the upper limit of its travel with the intake port 11 therein above the intake port 11 in the cylinder wall. Both intake and exhaust ports, are, therefore, closed entirely. The ratio of the gearing between the crank shaft and valve operating shaft is illustrated as four to one, and it Will be understood that for one cycle of operation the valves will be actuated to carry'the ports'therein from a position at one side of the cylinder ports'to a position at the other side of the same, and that for the next cycle of operation said valves will be actuated to carry the ports therein from said last mentioned position to the position at the other side of the cylinder ports. This gives a relatively slow valve action so that vibration, friction and Wear 'are reduced to a minimum. I a.

The valves are, preferably incased and I protected by a cylindrical housing. 85 surto the engine base 36. '40

rounding the valves and bolted in this case This housing is shown utilized for securing the cylinder also to the base by providing. it with a tubularextension 37Jin' the head thereof, which engages the head of the cylinder and thereby holds the cylinder firmlyto the. base.

This tubular dependent extension 37 provides a'pocket protecting the spark plug 38 which is let into the cylinder.

The ring 18 which'connects the upper end of the valve segment 16 is made with a large enough internal diameter'to fit around this tubular dependent extension 37, as indicated in Fig. 1. h

InF'g. 4. we have illustrated how the relation of the valve sleeve and the segments may, be reversed, the channels 17 in the valve sleeve 15. being 1n this case formed in the outer wallof the sleeve, and the seg- 16 being arranged to work in these efiannels-in theoute'r surface of the sleeve. v the same as the first form described.

The. operation of this form is practically From the foregoing, it will be clear that "the valve mechanism of our invention is simple'in construction and relatively light 6 in weight and further, that by reason of ing the valves by push links disposed at op posite .sides of the cylinder and in vertical alincment with the crank shaft. This makes a very compact engine which has less transverse width than an engine having the usual In this view the exhaust valve:.is at the extreme upper limit of its stroke with theport 12' therein above the exhaust port cylinder having ports in the side wall thereof? a sleeve in sliding engagement with said cy inder wall and controlling one of the ports therein, said valve sleeve having a longitudinal channel therein, a valve segment slidingly engaged in said channel in the valve sleeve and controlling one of the other ports in the cylinder wall, a crank shaft, a piston in the cylinder o eratively connected with said crank shaft and valve operating gearing from the crank shaft to said valve sleeve and segment respectively.

2. In an internal combustion engine, a cylinder having ports in the side Wall thereof, a sleeve in slidingengagement with said cylinder wall and controlling one of the ports therein, said valve sleeve having oppositely disposed longitudinal therein, valve segments slidingly engaged in said oppositely I disposed channels in the valve sleeve and controlling other ports in the cylinder Wall, a crank shaft, a piston in the cylinder ope'ratively connected with said crank shaft and valve operating gearing from said crank shaft to the valve sleeve and valve segments respectively. 3. In'an internal combustion engine, a cylinder having ports in the side wall thereof, a sleeve in sliding engagement with said cylinder wall and controlling one of the ports therein, said valve sleeve havmg oppositely disposed longitudinal channels therein, interconnected valve segments working as a unit and slidingly engaged in said channels in the valve sleeve and controlling other of the ports in the cylinder wall, a crank shaft, a piston in the cylinder operaig tively connected with said crank shaft and valve operating gearingfrom said crank shaft'to said valve sleeve and to said interconnected valve segments.

l. In an internal combustion engine, a

cylinder having ports in the side wall thereof, a sleeve surrounding and slidingly engaged over the outside of said cylinder and controlling certain of the ports therein, said valve sleeve having substantially opposite longitudinally extending channels therein, interconnected oppositely disposed channels 1 valve segments slidingly engaged in said nine/ 15a channels in the valve sleeve and controlling other of the ports in the cylinder Wall, a crank shaft, a piston in the cylinder operatively connected to said crank shaft and valve operating gearing from said crank shaft to the valve sleeve and to the interconnected valve segments respectively.

5. In an internal combustion engine, a cylinder having ports in the side wall thereof, a sleeve surrounding and slidingly engaged over the outside of said cylinder and controlling one of the ports therein, said valve sleeve having a longitudinal channel therein,

a valve segment slidingly engaged in said channel in the valve sleeve and controlling one of the other ports in the cylinder Wall, a crank shaft, a piston in the cylinder operatively connected with said crank shaft and valve operating gearing :troni the crank shaft to said valve sleeve and segment respectively.

6. In an internal combustion engine; a cylinder having two sets of oppositely disposed ports in the side Wall thereof, a sleeve in' sliding engagement with said cylinder Wall and controlling one set of oppositely dis-' posed ports, said sleeve having oppositely disposed longitudinal channels therein in line With the other set of ports, oppositely disposed interconnected sliding valve segments Working as a unit in said longitudinal channels and controlling the second set of oppositely disposed ports in the cylinder Wall, a crank shaft, a piston in the cylinder connected with said crank shaft and valve operating gearing from said crank shaft to said valve sleeve and the interconnected valve segments.

HENRY C. STOLL. GEORGE WV; GAY. 

